This article discusses issues related to body image in adolescents, explaining what school practitioners can do to encourage lifelong healthy habits that enhance body image. Body image is the picture of physical self carried in the mind's eye. This impression can have little resemblance to how a teen actually looks. Body image culturalization is the process by which an adolescent integrates others' perceptions with an internal sense of what is an acceptable or ideal size. It is important for teens to feel acceptance and satisfaction with their bodies. This relates to overall self-esteem and self-confidence. Adolescents who are deeply unhappy with their body image or have trouble accepting the developmental changes that come with puberty might take extreme measures to control weight gain. It is useful for them to understand the connection between body image and eating disorders. Things that practitioners can do in their schools to help students build a positive body image as part of lifelong healthful habits include: discourage dieting, provide comprehensive nutrition education, stress the importance of maintaining a comfortable weight, and discourage teens from using weight and the scale to measure progress toward health. (SM)